Nuclear gamma ray the nucleus dysprosium-160 (containing 160 nucleons) acts like a spinning object with quantized angular momentum, l2 = l(l + 1)ℏ2, and for this nucleus it turns out that l must be an even integer (0, 2, 4...). when a dy-160 nucleus drops from the l = 2 state to the l = 0 state, it emits an 87 kev photon (87 ✕ 103 ev). (a) what is the moment of inertia of the dy-160 nucleus?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.